RetroBBS - comp.sys.acorn.programmer - Re: Extended command line from BASIC

Extended command line from BASIC

<4ab1e0e65a.harriet@bazleyfamily.co.uk>

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From: harriet@bazleyfamily.co.uk (Harriet Bazley)
Newsgroups: comp.sys.acorn.programmer
Subject: Extended command line from BASIC
Date: Wed, 20 Sep 2023 14:30:17 +0100
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by: Harriet Bazley - Wed, 20 Sep 2023 13:30 UTC

Can anyone remind me how you use the DDE_Utils commands from BASIC to
invoke a command-line program with a string of parameters that
potentially exceed 255 bytes in length (and thus give errors if
assembled into a BASIC string variable?)

So far as I can tell from inspection of what I was doing in !SideDiff
(which now crashes with a segmentation fault), you simply call
DDEUtils_SetCLSize to point the OS to your buffer and then
DDEUtils_SetCL to run the command, but there seems to be some element
missing...

DIM CLbuffer% 2600
SYS "DDEUtils_SetCLSize", 2600

$CLbuffer%="Show Wimp$Scrap"
SYS "DDEUtils_SetCL",CLbuffer%

does nothing, so far as I can see.

--
Harriet Bazley == Loyaulte me lie ==

Everyone hates me because I'm paranoid.

Re: Extended command line from BASIC

<16320de75a.Thomas@tms_netz.vodafonemail.de>

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From: Thomas-Milius@vodafonemail.de (Thomas Milius)
Newsgroups: comp.sys.acorn.programmer
Subject: Re: Extended command line from BASIC
Date: Wed, 20 Sep 2023 23:36:23 +0200
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by: Thomas Milius - Wed, 20 Sep 2023 21:36 UTC

In message <4ab1e0e65a.harriet@bazleyfamily.co.uk>
Harriet Bazley <harriet@bazleyfamily.co.uk> wrote:

> $CLbuffer%="Show Wimp$Scrap"
> SYS "DDEUtils_SetCL",CLbuffer%
>
> does nothing, so far as I can see.

Is CLbuffer% the same as CLbuffer$ at SYS or is there a difference with
termination (0 and 13/10)?

Thomas Milius

Re: Extended command line from BASIC

<019647e75a.harriet@bazleyfamily.co.uk>

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From: harriet@bazleyfamily.co.uk (Harriet Bazley)
Newsgroups: comp.sys.acorn.programmer
Subject: Re: Extended command line from BASIC
Date: Thu, 21 Sep 2023 09:14:09 +0100
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by: Harriet Bazley - Thu, 21 Sep 2023 08:14 UTC

On 20 Sep 2023 as I do recall,
Thomas Milius wrote:

> In message <4ab1e0e65a.harriet@bazleyfamily.co.uk>
> Harriet Bazley <harriet@bazleyfamily.co.uk> wrote:
>
> > $CLbuffer%="Show Wimp$Scrap"
> > SYS "DDEUtils_SetCL",CLbuffer%
> >
> > does nothing, so far as I can see.
>
> Is CLbuffer% the same as CLbuffer$ at SYS or is there a difference with
> termination (0 and 13/10)?
>
The StrongHelp manual for "DDEUtils_SetCL" complains "The command line
is actually terminated at the first *control* character. This is very
annoying" - but presumably use from BASIC is the reason why....

--
Harriet Bazley == Loyaulte me lie ==

ObChocolate: Nice!

"The voters have spoken, the bastards..." -- unknown

devel / comp.sys.acorn.programmer / Re: Extended command line from BASIC

Subject	Author
Extended command line from BASIC	Harriet Bazley
Re: Extended command line from BASIC	Thomas Milius
Re: Extended command line from BASIC	Harriet Bazley